Learn what the air quality index (AQI) means, how it impacts your health, and how to stay safe when pollution is high.

The differences between Wales' three largest cities compared to each other, and the rest of the UK, have been laid out in a ...

Those groups particularly sensitive to particulate matter in the air may want to limit time outside Friday and Saturday.

Toxic smoke and dangerous particulate pollution are spreading far beyond the flames, leaving air quality at unhealthy levels ...

If you have been hearing about poor air quality in New York City Friday, you can breathe a deep sigh of relief (literally): ...

Wear a tight-fitting N95 mask at the bare minimum, but a P100 is better, experts say. Wear long sleeves, eye protection, closed-toed shoes and cut-resistant gloves. Clean or decontaminate anything ...

Southern California air quality monitors issued a dust and ash alert for all of Los Angeles County as strong Santa Ana winds blow through the Eaton and Palisades burn scars.​ ...

Dust and ash left behind from the wildfires across Southern California can be irritating and hazardous when inhaled.

If you think something seems off with the air quality today in New York City, you're not wrong. But what's causing it? One ...

Jan. 17, 2025 — Atmospheric scientists show proposed 'geoengineering' effort to remove methane, a potent greenhouse gas, from the atmosphere could worse air quality while providing minimal climate ...

INDIANA, USA — Cold air and gusty winds are one of the most dangerous types ... The threat to young puppies and older dogs needs to upgraded by one level compared to the chart. In addition, sick or ...

Ozone is a gas comprised of three oxygen (O3) atoms. It is unstable and reacts easily to other gases. In its natural state, it is a component in several levels of the atmosphere. At high altitudes ...